Data points: 81
The readout for Gemini 2.5 Pro and Gemini 3.1 Pro, before the detailed comparison sheet.
Decision read
Gemini 3.1 Pro
Gemini 3.1 Pro currently has the stronger profile, with verified wins split 1 to 5.
Evidence depth
81 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with Gemini 3.1 Pro
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare Gemini 2.5 Pro vs Gemini 3.1 Progemini-2-5-pro-vs-gemini-3-1-pro | Model A Gemini 2.5 Pro | Model B Gemini 3.1 Pro |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 5 wins |
| Where it leads | Recent tests | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage |
| Model metadata | Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | Gemini 3.1 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. |
| Developer | ||
| Context window | 1.0M tokens | 1.0M tokens |
| Max output | 65.5K tokens | 65.5K tokens |
| Released | Jun 2025 | Feb 2026 |
| Modalities | Input TextImageFileAudiovideo Output Text | Input AudioFileImageTextvideo Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | Gemini | Gemini |
| Knowledge cutoff | 2025-01-31 | No data |
| OpenRouter ID | google/gemini-2.5-pro | google/gemini-3.1-pro-preview |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Gemini 2.5 Pro | Gemini 3.1 Pro |
|---|---|---|
| GPQA | 84.4%#36 | 94.1%#1 |
| SciCode | 42.8%#32 | 58.9%#2 |
| HLE | 21.1%#37 | 44.7%#3 |
| Input price | $1.25/M#30 | $2.00/M#36 |
| Output speed | 132.3 tok/s#36 | 133.4 tok/s#35 |
| Output price | $10.00/M#41 | $12.00/M#42 |
| Blended price | $3.44/M#58 | $4.50/M#61 |
| Time to first answer token | 23.08 s#77 | 28.68 s#84 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Pro | Gemini 3.1 Pro |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 2.5 Pro | Gemini 3.1 Pro |
|---|---|---|
CatClaw API40 tests | Gemini 2.5 Pro speed / latency 48 tok/s / 23637ms input / output No data | Gemini 3.1 Pro speed / latency 121 tok/s / 11404ms input / output No data |
TradingBase API10 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | Gemini 3.1 Pro speed / latency 102 tok/s / 12933ms input / output No data |
AIHubMix5 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | Gemini 3.1 Pro speed / latency 70 tok/s / 25059ms input / output No data |
DeepRouter5 tests | Gemini 2.5 Pro speed / latency 92 tok/s / 16347ms input / output No data | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data |
Hi API5 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | Gemini 3.1 Pro speed / latency 70 tok/s / 23273ms input / output No data |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0/M / $0/M | Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0/M / $0/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0006/M / $0.0050/M | Gemini 3.1 Pro gemini-3.1-pro speed / latency No data input / output $0.037/M / $0.150/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.0006/M / $0.0050/M | Gemini 3.1 Pro gemini-3.1-pro speed / latency No data input / output $0.037/M / $0.150/M | |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.014/M / $0.904/M | Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.0041/M / $0.0041/M | |
Gemini 2.5 Pro gemini-2.5-pro-c speed / latency No data input / output $0.0082/M / $0.0082/M | Gemini 3.1 Pro gemini-3.1-pro-preview-c speed / latency No data input / output $0.0082/M / $0.0082/M |
This report only uses LMSpeed data for Gemini 2.5 Pro and Gemini 3.1 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 2.5 Pro | Gemini 3.1 Pro |
|---|---|---|
| When to choose each model | Gemini 2.5 Pro Gemini 2.5 Pro is stronger when you prioritize Recent tests. | Gemini 3.1 Pro Gemini 3.1 Pro is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage. |
TL;DR: Gemini 3.1 Pro leads across 81 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 2.5 Pro vs Gemini 3.1 Pro into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
